12549983 has 4 divisors (see below), whose sum is σ = 12557160. Its totient is φ = 12542808.

The previous prime is 12549913. The next prime is 12550001. The reversal of 12549983 is 38994521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12549983 - 2¹² = 12545887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12549983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12549913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941 + ... + 5097.

It is an arithmetic number, because the mean of its divisors is an integer number (3139290).

Almost surely, 2^12549983 is an apocalyptic number.

12549983 is a deficient number, since it is larger than the sum of its proper divisors (7177).

12549983 is an equidigital number, since it uses as much as digits as its factorization.

12549983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7176.

The product of its digits is 77760, while the sum is 41.

The square root of 12549983 is about 3542.5955174138. The cubic root of 12549983 is about 232.3883643352.

The spelling of 12549983 in words is "twelve million, five hundred forty-nine thousand, nine hundred eighty-three".